必ひつ定じょう

na-adjective, adverb, noun

inevitably; certainly; without fail

Literary or formal word expressing strong certainty that something will happen; often used in narrative or emphatic statements. Functions as an adverb, adjectival noun, or noun.

• この計けい画かくは必ひつ定じょう成せい功こうするだろう。

  This plan will certainly succeed.

• 彼かれの努ど力りょくは必ひつ定じょう報むくわれるに違ちがいない。

  His efforts are bound to be rewarded without fail.